Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS)
A magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDDA) as well as the adjacent PDDA molecules. MPE, IONP, IONP-PSS, and IONP-PSS-PDDA were synthesised...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2022
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| Online Access: | http://eprints.usm.my/55456/ http://eprints.usm.my/55456/1/Oil-From-Water%20Removal%20Under%20Low%20Gradient%20Magnetic%20Separation%20%28LGMS%29.pdf |
| _version_ | 1848883085492355072 |
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| author | Runnizam, Muhaimin Hazmi Khai |
| author_facet | Runnizam, Muhaimin Hazmi Khai |
| author_sort | Runnizam, Muhaimin Hazmi Khai |
| building | USM Institutional Repository |
| collection | Online Access |
| description | A magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDDA) as well as the adjacent PDDA molecules. MPE, IONP, IONP-PSS, and IONP-PSS-PDDA were synthesised. Their chemical, physical, and magnetic characteristics were analysed in depth. Under macroscopic motion of MPE, the synthesised MPE was examined. A smartphone camera captured the fluctuating turbidity of the MPE suspension. ImageJ was used to analyse all photos. The MPE magnetic separation efficiency reached 80% in 30 minutes on a macroscopic scale under all conditions. However, the MPE colloidal stability was lowest at pH 10 compared to pH 3 and DI water under a flocculation time of 2 hours. MPE at pH 10 needed the least time to achieve the greatest separation efficiency. As a result, MPE at pH 10 exhibited cooperative magnetophoresis, as it irreversibly flocculated during magnetophoresis. During the macroscopic study, the MPE did not deform or coalesce under the magnetic field B of 0.02 T ~ 0.64 T and magnetic field gradient (dB/dz), ∇B of 25.09 T/m ~ 94.57 T/m. Magnetophoresis study demonstrated that IONP-composites on emulsion droplets corresponded with significant positive MPE zeta potential. This is because, in addition to IONP-PSS-PDDA, PDDA molecules occupied considerable portions of emulsion droplet surfaces. Magnetophoresis of newly synthesised MPE improved oil recovery prospects. |
| first_indexed | 2025-11-15T18:45:12Z |
| format | Monograph |
| id | usm-55456 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:45:12Z |
| publishDate | 2022 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-554562022-10-31T07:53:33Z http://eprints.usm.my/55456/ Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) Runnizam, Muhaimin Hazmi Khai T Technology TP155-156 Chemical engineering A magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and poly(diallyldimethylammonium chloride) (PDDA) as well as the adjacent PDDA molecules. MPE, IONP, IONP-PSS, and IONP-PSS-PDDA were synthesised. Their chemical, physical, and magnetic characteristics were analysed in depth. Under macroscopic motion of MPE, the synthesised MPE was examined. A smartphone camera captured the fluctuating turbidity of the MPE suspension. ImageJ was used to analyse all photos. The MPE magnetic separation efficiency reached 80% in 30 minutes on a macroscopic scale under all conditions. However, the MPE colloidal stability was lowest at pH 10 compared to pH 3 and DI water under a flocculation time of 2 hours. MPE at pH 10 needed the least time to achieve the greatest separation efficiency. As a result, MPE at pH 10 exhibited cooperative magnetophoresis, as it irreversibly flocculated during magnetophoresis. During the macroscopic study, the MPE did not deform or coalesce under the magnetic field B of 0.02 T ~ 0.64 T and magnetic field gradient (dB/dz), ∇B of 25.09 T/m ~ 94.57 T/m. Magnetophoresis study demonstrated that IONP-composites on emulsion droplets corresponded with significant positive MPE zeta potential. This is because, in addition to IONP-PSS-PDDA, PDDA molecules occupied considerable portions of emulsion droplet surfaces. Magnetophoresis of newly synthesised MPE improved oil recovery prospects. Universiti Sains Malaysia 2022-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/55456/1/Oil-From-Water%20Removal%20Under%20Low%20Gradient%20Magnetic%20Separation%20%28LGMS%29.pdf Runnizam, Muhaimin Hazmi Khai (2022) Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS). Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted) |
| spellingShingle | T Technology TP155-156 Chemical engineering Runnizam, Muhaimin Hazmi Khai Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title | Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title_full | Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title_fullStr | Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title_full_unstemmed | Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title_short | Oil-From-Water Removal Under Low Gradient Magnetic Separation (LGMS) |
| title_sort | oil-from-water removal under low gradient magnetic separation (lgms) |
| topic | T Technology TP155-156 Chemical engineering |
| url | http://eprints.usm.my/55456/ http://eprints.usm.my/55456/1/Oil-From-Water%20Removal%20Under%20Low%20Gradient%20Magnetic%20Separation%20%28LGMS%29.pdf |